The PANASONIC 123 Batteries CR123A DL123 are 3V Lithium batteries with a long expiry date, making them ideal for use in a variety of devices. These cylindrical batteries have a diameter of 17mm and a height of 34.5mm, with a nominal capacity of 1400mAh. Suitable for both high and low drain devices, these non-rechargeable batteries are designed for reliable power in sound and vision applications. With a brand name of Panasonic and a lithium manganese dioxide chemical composition, these batteries offer a stable and consistent performance in a range of operating temperatures from -40C to +70C.